I took two business law courses in college. 

Also be aware of Unrelated Business Income Tax (or UBIT) on leveraged real estate inside of an IRA.Or better yet, since you are self-employed - go with a truly self-directed Solo 401k plan, which would be a much better option and will help you avoid the UBIT on this investment.

I'm looking for advice on a situation with an investment property my business partner and I purchased in June 2024 under our joint LLC in Springfield, OR.

What you need to learn in your 20s is how professional business works, how to manage people and projects, how to run an organization and how to sell ideas and concepts.

Same principles apply - being busy will create opportunity. 

Unfortunately, the only guarantee in this business, or any business really, is there are no guarantees of outcomes... ever.  

For us STR hosts, I know we are very conscientious about guest experience and I want to be proactive about doing things to ensure my business operates successfully.Thanks!

We have done business together.  

Move into the house for a while (there are spare rooms) and get a better idea of what is going on.

I am not sure what type of real estate investing you're considering, but it sounds like, with your family and busy job, you won't have a lot of time to be hands-on or personally involved.